wsl: mount without sudo - permission denied

I want to mount a Windows partition inside wsl ubuntu 18.04.2 LTS. I added the following line to /etc/fstab:

\\192.168.2.42\c        /mnt/test                drvfs   noauto,defaults,user    0       0

It works if I run it with sudo like this:

sudo mount /mnt/test

Then I added a file to /etc/sudoers.d/ with this context (also tried with my user and host name etc.):

ALL ALL = (root) NOPASSWD: /bin/mount

I restartet wsl (also tried reboot):

net stop LxssManager
net start LxssManager

When I now run mount without sudo I still get:

mount /mnt/test

mount: only root can use "--options" option <3>init: (146) ERROR:
UtilCreateProcessAndWait:360: /bin/mount failed with status 0x100 No
error information

Edit after feedback from @biswapriyo

I was in the group sudo already (1st step). The 2nd step mounts the drive when launching wsl. /etc/wsl.conf:

# Enable extra metadata options by default
[automount]
enabled = true
options = "defaults,user"
mountFsTab = true

It works because it is launched as root I suppose. Nevertheless this is not what I need. Background: I need to mount a remote VPN network drive by a shell script. I don't always need it and it might not always be available. So mounting on startup is not an option.

Solution

Answering my own question:

the /etc/fstab stuff does not work for wsl.
sudo visudo does:

enter: sudo visudo

then yourusername ALL=NOPASSWD: /bin/mount /media/data, /bin/umount /media/data

replace yourusername with your login name, then you can do a sudo mount /media/data, still need the sudo but works w/o password.

Note: /media/data and /media/data/ are handled differently so be aware. Maybe enter both to be on the safe side.